Strombina gradata (FOSSIL) R.J.L. Guppy, 1866 †
Mitrella graevei R.N. Kilburn, 1977
Mitrella granti H.N. Lowe, 1935
Cosmioconcha grenoni J. Pelorce, 2017
Anachis guaica (FOSSIL) (C.J. Maury, 1925 †)
Mitrella guanahaniensis M.J. Faber, 2004
Mitrella guerreiroi E. Rolán, 2002
Anachis guerreroensis (A.M. Strong& L.G. Hertlein, 1937)
Strombina gunteri (FOSSIL) W.C. Mansfield, 1930 †
Spiralta guppyi (FOSSIL) (W.P. Woodring, 1928 †)
Sincola gurabensis (FOSSIL) (C.J. Maury, 1917 †)
Mitrella guttata (G.B. I Sowerby, 1832)
Aesopus guyanensis J. Pelorce, 2017
Zanassarina habra (FOSSIL) W.P. Woodring, 1964 †
Columbella haemastoma G.B. I Sowerby, 1832
Zafra hahajimana (H.A. Pilsbry, 1904)
Costoanachis haitensis (FOSSIL) (Sowerby, 1850 †)
Steironepion hancocki (L.G. Hertlein& A.M. Strong, 1939)
Anachis hannana (L.G. Hertlein& A.M. Strong, 1951)
Sincola harbisonae (FOSSIL) A.A. Olsson, 1964 †
Mitrella harfordi A.M. Strong & L.G. Hertlein,1937
Zemitrella haroldi (FOSSIL) C.R. Laws, 1935 †
Microcithara harpiformis (G.B. I Sowerby, 1832)
Astyris hartmanni J. Espinosa & J.A. Ortea,2014
Mitrella hastata M. Lussi, 2002
Anachis haueri (M. Hörnes & M. Auinger,1880)
Mitrella hayesi M. Lussi, 2002
Mitrella hayesorum (FOSSIL) Duerr, 2008 †
Mitrella haziersensis (J. Drivas & M. Jay,1990)
Zafra hedleyi (K.H.J. Thiele, 1930)
Zemitrella helena (K.H.J. Thiele, 1925)
Cosmioconcha helenae (F.H.A. Costa, 1983)
Nassarina helenae A.M. Keen, 1971
Zemitrella hella (K.H.J. Thiele, 1925)
Columbella helvetica (FOSSIL) C. Mayer †